P0700 on Chevrolet vehicles
95 owner complaints filed with NHTSA about Chevrolet vehicles mention P0700 (Transmission Control System (MIL Request)) - across 16 models. Below is where it shows up, by model and year.
Can you drive with it? P0700 itself is a messenger; drivability depends on the transmission code behind it. Erratic shifting means minimize driving.
Symptoms, likely causes in order and realistic repair costs are on the main P0700 page - they do not differ much by brand. This page shows what is specific to Chevrolet: which models and years actually report it.
Chevrolet models reporting P0700
The number next to each year is how many NHTSA complaints for that car mention P0700. Owners rarely quote trouble codes when complaining, so real occurrence is many times higher - use these numbers to compare years, not as totals.
What Chevrolet owners report
“An internal transmission Output Shaft Speed Sensor (OSS) failure causes the vehicle to enter "limp mode" and shift violently, creating a risk of rear-end collisions or loss of control, according to the report. A GM dealer confirmed diagnostic codes P0722 and P0700, isolating the issue to an internal component after an inspection of the external wiring harness.”2022 Chevrolet Silverado 1500 · Jul 2026
“Had issues transitioning to reverse, drove vehicle to the dealership. While driving on a busy road vehicle went into limp mode and had to pull over. Vehicle needed to be towed to the dealership. Dealership was able to verify vehicle was unable to reverse. They also found P0700 and P0776 error codes. They also used service bulletin 22-NA-258. We had not noticed excessively harsh shifting prior to this event. Had to replace components in the valve body”2022 Chevrolet Tahoe · Mar 2026
“Will pulling camper, truck lurched with hard shift at around 35mph and caused a sudden slow down in traffic. Truck then went into limp mode with engine light illuminated. Pulled over to turn vehicle off and restart. Attempted to gain speed again and similar lurch with hard shift at around 35-40mph. Vehicle again in reduced power mode. Was able to ease truck to dealer where code reader showed P0700 and P0747. This was similar to issue found in recall for model years 2020-2022 with GM 10L1000 transmissions. There has been a technical service bulletin issue by GM regarding models years 21-25 but no recall. Dealer has ordered parts for TSB but repair not performed yet.”2023 Chevrolet Silverado 2500 · Feb 2026
“Car went to limp mode, hard shifting very suddenly. Transmission system failed. No reverse. Computer codes p0700 p0777 p18A1 inspected at Chevy service center and needs valve body replacement. No warnings, lights, alerts, hard shifts previously.”2022 Chevrolet Tahoe · Dec 2025
P0700 on other makes
Makes with enough NHTSA reports of P0700 for their own page.
Counts are NHTSA owner complaints whose text mentions P0700 - owner-reported and unverified. Always confirm with a diagnosis of your specific vehicle.